单项选择（ ）1.----This physics problem is too difficult .Can you

单项选择（ ）1.----This physics problem is too difficult .Can you show me （）,Wang li?
单项选择
（ ）1.----This physics problem is too difficult .Can you show me （）,Wang li?
---- Sure
A.what to work it out B.what to work out it
C.how to work it out D.how to work out it
()2.It is important () the piano well
A.of him to play B.for him to play
C.of him playing D.for him to playing
()3.---Sorry ,I can’t follow you .I beg your pardon
---()
A.You are welcome B.That’s all right
C.Not at all D.No problem
()4The old farmer felt like .() a big house very much
A.to get B.get C.getting D.got
()5.She () walk at night .How brave she is
A.dare to B.dares to C.dare not D.doesn’t dare to